. >> reporter: that require square, that's where opponents of egyptian president mohamed morsi are demonstrating. there was a shooting here earlier today. the focus, however, tonight is a few miles from where we are right now. the presidential palace. anti-morsi protesters are there in very big numbers trying to knock down the barrier defending that palace, all the while supporters of morsi and the members of the muslim brotherhood already nearby, they were involved in deadly clashes last week. so far they have been separate. a different time perhaps. since then, the military has been trying to grant morsi wide powers to intervene, arrest and get involved to try to calm things down. a lot of attention, as you noted, being paid tonight to the planned referendum on saturday on a draft constitution for egypt. critics say morsi's just trying to push it through, that it is islamist, that it is discriminatory and that he is acting in the last couple of weeks like some strongmen of the past here in egypt. for his part, morsi and his supporters say, hey, they've been elected democratically, and they are